Oil-burner



(No Model.) v i J. F. COATES.

oIL BUNBR.

No. 443,47'7. Patented Dec. 23, 1890.

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JOIIN F. COATES, OF TERRE IIATE, INDIANA.

O l L B U R N E R SFECIFICATION forming part of Letters-Patent No.443,47'7, dated December 28, 1890. Application filed August 11,1890. Serial No. 361,646. (No model.)

To aZZ whom it may conccrn:

Be it known that I, J OHNF. OoATEs, a citizen of the United States, and a resident of the city of Terre Haute, in the county of Vigo and State of Indiana, have invented certain new and useful Improvements in an Oil-Burner;

and I do hereby declare that the following is a' full, elear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specificat-ion.

My invention relates to that class of oil` burners Wherein any volatile oil is converted to a vaporous state by means of steam, heated air, or other similar agent, said agent mixing with the oil and forming with it an inflam mable vapor, and is used for heating purposes.

The objects of my nvention are lto attain a cheaper, more convenient, and more efficient heating agent by the use of petroleuin and other combustible fluids. I attain these objects by means of the mechanism illust-rated in the accompanying dra'wings, in which- Figure 1 is a side elevation of the burner, with dotted lines showing the position of various internal parts. Fig. 2 is an end view showing the lower one-half of the burner, the feed-pipes, and the steam-dome, the steam- Ways of the same being indicated by dotted lines. Fig. 3 is a view showing a cross-section of the burner, taken upon a horizontal plane through the center of the burner, the burner being upright, and showing the form and position of the steamways, the different pipes, &c. Fig. 4 is a view showing a crosssection of the steam-dome, the entrance to, and exit therefrom.

Similarletters refer to similar parts throughout the several views.

The letterAindicates the main body of the burner, which is a casting of iron, brass, or other suitable material, consisting of a cylinder a, a head b, said head extending beyond'v the sides of a and forming a tlange b', and a heavy lug e, which extendsV about one-half way around the cylinder ct. In the casting of A a tube-like passage is left through the center, winding around and Opening into which are left a set of steamways or passages f and f', as shown in Fig. 3. The steamwaysf and f' enter A at the head in the form of tubes, both below ahorizontal plane and one on each side of a perpendicular plane through the center. After passing through the head b, and a short way into the lug e, the ways incline upward until on a level with the longitudinal axis of a. Then the two, being diametrically opposite, revolve in the same direction and in a spiral manner around about the passage through the center of a, Opening into the same and extending toward the opposite end of a. At the forward end X of a the two steamways f and f' open, diamelrically opposite to each other, into a deme-like cavity c, said dorne c converging toward X to within a short distance of the extreme end of a, where it begins to diverge and forms a bellshaped mouth or orifice (Z.

The letter g indicates a hollow tube or pipe, which exactly fits into the passage through the center of a, and acts as an inner wall for the steamways f andf', and his a smaller pipe, which passes through g, the same being held in position and apart from the inner walls of g by a threaded head i. As shown in Fig. 3, said pipe h protrudes through and beyond the head fi, where it may be connected with an oil-supply pipe.

In Fig. 4,3' indicates a hcmispherical steam dome or chest, which is cast in one piece, of iron, brass, or other suitable material, and consists of the body Z, the throat k, and the base m. The body Z is a (lome curving gradually up to and ending in the throat k, through which the steam-supply pipe n passes. The interior is a cavity, the walls of which are similar in form to the outside of the dome. The base m is of solid material, and extends over and beyond the bot-tom of the dome, forminga plate similar in form andsize to the head b of the cylinder ct. Through m there are drilled three holes, one in the center, through which the oil-supply pipe and head 1,' pass, and the other two in such position as to coincide exactly and communicate with the respective entrances to the two steamways f and f through b. The base m and the head b are fastened firmly together by means of large serews s,

To operate my burner I attach an oil-supply pipe to the pipe h and admit a small TOO ilow of oil, which is ifznited in the cavity c, the4 combustion of which produces a small amount of steam in the Vessel which is to be heated. This steam is conducted through the supply-pipe n, and passes into the dome J, where it divides into two currents, each passing into one of the steainways fand f', then passing around the pipe g, through the spiral ways, heating the same, and then passing` on,'escaping into the cavity c, where the two currents blow aeross one another, as shown in Fig. The oil passinf; through tnbe h is heated evenly by the heat which is communieated from the pipe r/ and escapes into the cavity c, where it is out by the two currents of steain and Converted thereby into a Vaporous state. This Vapor uniting with the steam forins an imfiammable vapor, which blows out through the orifice d, where it is ignited and produces an intense heat. The head 11 separates the two pipes g and 71, leaving thereby an airspaee between the two, the effect of which is to modify and even the temperature of the oil which passes through 71 and to prerent the same from boiling.

I am aware that prior to my invention eontrivances were used by means of which steam and oil have been caused to eombine in a vaporous state and produce thereby a heating` agent. I do not therefore make any broad claim on such principle; but

What I do claim as my invention, and desire to secure by Letters Patent, is

1. In an oi1-burner, the combination of an outer hollow cylinder A, consisti ng of the body 35 ar, provided With two internal spiral steamways ff', leading from the supply end to the diseharge end, the dome-shaped condensingchamber C, and the flaring'orifice (Z at the discharge end, the head b, cast integral with the body a, a pipe g, fitted closely within a, an oil-pipe h within pipe g, and the steamdome J, eonsisting of the body Z, the throatk, a base m, similar to and fixed to the head b in such nianner that the respective steamways perforating each shall coineide, all substantially as described and set forth.

2. The combination, in an oil-burner, of a eylinder A, consisting,r of a body a, having a do1ne-shaped condensing-chamber c and the fiaring orifiee at its discharge end two spiral steamwaysf andf', the oil-pipe h, inelosed within another pipe g, the head b, the internally and externally threaded nut or head i, which fits tightly into the head band supports and regulates the relative position of the pipes g and 7:, an oil-supply pipe 71, suitably eonnected with the oil-pipe and a steam-(lome J,al1 substantially as speeiled and set forth.

In testiinony that- I elaim the foregoing' as my own I affix my Signature in presence of two witnesses.

JNO. F. COATES.

Wtnesses:

J oHN D. MlreiiELL, JNo. C. Ronnvsox. 

